Touch Panel and Touch Display Apparatus

A touch panel having a touch area, the touch panel comprising:

• a base substrate;
• and
• a touch function layer disposed on the base substrate, the touch function layer including a plurality of first touch units extending in a first direction and a plurality of second touch units extending in a second direction;
• wherein each first touch unit includes a plurality of first touch electrodes arranged in the first direction and connected in series, each second touch unit includes a plurality of second touch electrodes arranged in the second direction and connected in series;
• the plurality of first touch electrodes and the plurality of second touch electrodes are insulated from each other;
• the plurality of first touch electrodes are located in a same layer, and the plurality of second touch electrodes are located in a same layer;
• the first direction intersects the second direction;
• wherein
• the base substrate has at least two mounting holes located in the touch area, the touch function layer is hollowed out at positions corresponding to the at least two mounting holes and has a gap region at a position corresponding to a region between two adjacent mounting holes;
• in a first touch unit passing through the gap region, first touch electrodes located in the gap region serve as a first gap electrode and a second gap electrode that are arranged in the first direction and are electrically connected to each other;
• in a second touch unit passing through the gap region, second touch electrodes located in the gap region serve as a third gap electrode and a fourth gap electrode that are arranged in the second direction and are electrically connected to each other;
• the third gap electrode is located between the first gap electrode and the second gap electrode in the first direction;
• in a radial direction of each mounting hole, the touch function layer further includes:
• a light blocking portion, at least one connection line, a first signal shielding portion and an electrode line that extend along a contour of the mounting hole;
• wherein
• the light blocking portion extends along an edge of the mounting hole to form a closed-loop structure, and the light blocking portion is configured to block light passing through the mounting hole from entering a region around the mounting hole;
• the at least one connection line is disposed on a side of the light blocking portion away from the mounting hole, and a connection line is configured to electrically connect two adjacent first touch electrodes arranged in the first direction, or electrically connect two adjacent second touch electrodes arranged in the second direction;
• the electrode line is disposed on a side of the at least one connection line away from the mounting hole, and configured to be electrically connected to an edge, proximate to the mounting hole, of a first touch electrode or a second touch electrode;
• and
• the first signal shielding portion is disposed at least between the connection line and the electrode line that are adjacent.